Première lettre de l'alphabet grec.
ETYM Latin alpha, Greek alpha, from Hebrew âleph, name of the first letter in the alphabet, also meaning ox.
1. The 1st letter of the Greek alphabet.
2. The beginning of a series or sequence.
First letter (A, a) of Greek alphabet. alpha and omega, first and last; entirely; quintessence. alpha particle, positively charged particle, the nucleus of a helium atom. alpha ray, a ray or beam of alpha. particles. alpha wave, variation in frequency of brain waves associated with drowsiness.
In computing, a 64-bit RISC chip launched 1993 by Digital Equipment (DEC). It was seen as a rival to Intel's Pentium chip.